Q235 yog dab tsi?
Nws tau muab faib ua plaub qib zoo: Q235A, B, C, thiab D. Qhov sib txawv tseem ceeb nyob hauv qhov ntsuas kub thiab kev tswj tsis huv.
Cov kev xeem cuam tshuam rau txhua qib?
Q235A: Tsis xav tau kev kuaj xyuas;
Q235B: Kev ntsuas cuam tshuam ntawm 20℃(chav kub), cuam tshuam lub zog Ntau dua lossis sib npaug rau 27J;
Q235C: Kev ntsuas cuam tshuam ntawm 0 degree, cuam tshuam lub zog Ntau dua lossis sib npaug rau 27J;
Q235D: Kev ntsuas cuam tshuam ntawm -20 degree, cuam tshuam lub zog Ntau dua lossis sib npaug rau 27J.
Cov txheej txheem deoxidation rau txhua qib?
Q235A / B: Tau rimmed steel (F) lossis tua hlau (Z);
Q235C: Yuav tsum tau tua hlau (Z);
Q235D: Yuav tsum yog cov hlau tshwj xeeb tua (TZ).
Sulfur thiab phosphorus cov ntsiab lus tswj rau txhua qib? Cov qib qis dua los ntawm A txog D: A Tsawg dua lossis sib npaug li 0.045% / Tsawg dua lossis sib npaug li 0.050%, B Tsawg dua lossis sib npaug li 0.045% / Tsawg dua lossis sib npaug li 0.045%, C Tsawg dua lossis sib npaug rau 0.040% / Tsawg dua lossis sib npaug rau 0.0040% lossis sib npaug li 0.040% lossis sib npaug sib npaug li 0.035%.
Yuav ua li cas xaiv Q235 qib?
Rau cov khoom zoo li qub ntawm qhov kub thiab txias thiab tsis yog - cov qauv tseem ceeb: Q235A (tus nqi qis tshaj); Rau dynamic loads ntawm ib txwm kub thiab dav engineering tej yaam num: Q235B (tus nqi siab tshaj -kev ua tau zoo piv); Rau qis- qhov kub thiab txias ib puag ncig 0 degree: Q235C; Rau qhov chaw txias heev ntawm -20℃thiab qis dua: Q235D.